Same function as ESIB (8)-U10 without expansion capability. The Electronic Station Interface ETU contains eight circuits. Each circuit can support one Digital Multiline Terminal (Electra Elite, Electra Professional or Dterm Series E set, Message Display Board, Attendant Add-on Console, Single Line Telephone adapter, Dterm Cordless Terminal, Dterm Extender or ElectraMail CTI port.
Elite IPK Digital Station Interface